Human dignity ... is derived from a sense of independence.

The child is an enigma… He has the highest potentialities, but we do not know what he will be.

The ancient saying, "There is nothing in the intellect which was not first in some way in the senses," and senses being explorers of the world, opens the way to knowledge.

At about a year and a half, the child discovers another fact, and that is that each thing has its own name.

The development of the individual can be described as a succession of new births at consecutively higher levels.

Respect all the reasonable forms of activity in which the child engages and try to understand them.

We cannot create observers by saying 'observe,' but by giving them the power and the means for this observation and these means are procured through education of the senses.